it's like governor christie talking about a diagnosis 2,000 miles away. sounds like he's paranoid type. they take everything personally and they're on a mission and have odd sorts of feelings about their own body and they think people are always talking about them. it's not atypical. >> ptsd, he was a vietnam vet and a lot of people watching this, parents, is this something to be afraid of. people who are loners, who seem a little strange could do something awful. is ptsd, is it fair to link that to this? >> well, it's just that they're, they often go together. it's not unusual for that to happen. in any sort of trauma. it could be a precipitating event. they could have been that way from birth. there is probably a genetic compound, so to blame it on the war, the war could be a trigger. it would go along with that personality type. >> and john, i mean, are we ever going to get more information about dykes? >> we've learneded a little bit and i think dr. fallon would probably read some things into this, but here was a guy who patrolled his yard at night wi